How to use plasma cutting machine?

Cutting using method:

General cutting: general plasma cutting without protective gas, working gas and cutting gas from the same nozzle. When the arc is started, small airflow ion gas is ejected as ionization medium; When cutting, large airflow of gas is spewed out at the same time to remove the molten metal.

Air cutting: air plasma cutting generally uses compressed air as ionic gas. This method has low cost and convenient gas source. The compressed air is heated, decomposed and ionized in an arc, and the resulting oxygen cuts the metal in a chemical exothermic reaction that speeds up the cutting. The enthalpy value of fully ionized air plasma is high, so the energy of arc is high and the cutting speed is fast.